The 443 area code covers Baltimore, Annapolis, Columbia and more in Maryland. Provision a local 443 number in minutes.
Area code 443 is the overlay for the 410 code, covering the Baltimore metropolitan area and Maryland's Eastern Shore. The overlay was introduced in 1997 as demand for numbers in the rapidly growing Baltimore-Washington corridor outpaced 410's capacity. Both codes now require 10-digit dialing throughout the coverage area.
The 443 area code covers Baltimore, Annapolis, Columbia, Bel Air in Maryland.
Phone numbers in the 443 area code operate on America/New_York time.
Yes. The 443 area code was introduced in 1997 and remains an active overlay code today.
Yes. Ajoxi provisions virtual 443 numbers with instant activation, clean caller-ID delivery, Tier-1 routing, and no setup fees — so you can build a local presence in minutes.
Provision a 443 number with instant activation, clean caller-ID, and Tier-1 routing — no setup fees, live in minutes.